2 papers
cond-mat.mes-hall2026
Absence of a Superradiant Phase Transition in Dirac Landau Polaritons
Elsa Jöchl, Felix Helmrich, Frieder Lindel +6
One of the most striking predictions in cavity quantum electrodynamics is the condensation of photons into a macroscopically populated ground state, the so-called superradiant phas…
cond-mat.mtrl-sci2025
Cavity-Driven Attractive Interactions in Quantum Materials
F. Helmrich, H. S. Adlong, I. Khanonkin +5
Many-body phenomena in quantum materials emerge from the interplay among a broad continuum of electronic states, and controlling these interactions is critical for engineering nove…